Body Snatchers (1993)

Marti, a teenager who moves to a remote southern military base with her EPA inspector father, stepmom, and little brother, Andy. To say poor Marti finds life on the base strange is a pretty drastic understatement; before she can even unpack her bags, alien pods start replacing her friends and family with dehumanized replicas. A pod even tries to get her when she’s taking a bath.